Feeding mechanism for threshing-machines.



Q e o. LONG. FEEDING MECHANISM FOR THRESHING MACHINES.

APPLICATIQN FILED FEB- 25.1915- Patented July 4, 1916.

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GUY C. LONG, OF TIMBER LAKE, SOUTH DAKOTA.

FEEDING MECHANISM FOR THRESHING-MACHINES.

Specification of Letters Patent.

rammed July a, 1916.

Original application filed July 25, 1913, Serial No. 751,235. Divided and this application filed February 25, 1915. Seria1No. 10,593.

To all whom it may concern:

Be it known-that I, GUY LONG, a c1t1- zen of the United States, residing at Timber Lake, in the county of Dewey and State of I 7 81,235, which matured into Patent No.

1,110,950, September'15, 1914..

The present invention has for its object the provision of novel, simple and efficient means whereby the conveyer will be auto matically rendered inoperative should it carry grain to the elevator faster than. the latter can deliver it to the threshingmachine. This object is attained in the use of mechanism such as that illustrated in the accompanying drawings, and the invention resides in certain novel features hereinafter first fully described and then more particularly pointed out, in the appended claims.

In the drawings: Figure 1 is a plan view of so much of a feeding mechanism as is needed to impart an understanding of the present invention; Fig. 2 is aside elevation of the same; and Fig. 3 is a detail perspective view of the essential elements of the mechanism.

In the drawings, 1 designates a truck which is connected to a threshing machine, indicated at 2, and in which is mounted a series of rollers 3 supporting a conveyer 4 by which grain is delivered to" an elevator 5, the elevator feeding the grain into the threshing machine. The elevator is pivotally hung at its upper end, as at 6, to the frame of the threshing'machinaand a boot 7 is secured to the truck adjacent the delivery end of the conveyer and extends under the path of movement of the lower end of the elevator. v V

A sprocket chain 78 leads from any convenient or preferred driving mechanism (not shown) around a sprocket wheel 79 on a transverse shaft 80 which is journalcd on the side bars of the truck and carries sprocket wheels 81 by which motion is imparted to the conveyer. The sprocket wheel 7 9 is slidably mounted upon the shaft 80 and is provided with a clutch hub 111 adapted to engage a clutch member 112 rigidly secured upon said shaft. The clutch hub 111 is en- .end.

gaged by a fork 113 secured to the upper end of a rock shaft 114 journaled in a suit able bracket 115 secured to the outer side of the sill of the truck 1 and having an arm 116 extending inwardly from its lower To the inner end of this arm 116 is pivoted the front end of a connecting rod117 which extends longitudinally ofthe truck and has its rear end connected to the elevator. It will be readily understood that, if the said connecting rod 117 be drawn rearwardly, the arm 116 will be vibrated so that the shaft 114 will be rocked and the fork 113' moved outwardly so that the hub 111 will be disengaged from the clutch member 112 and the sprocket wheel 79 then permitted to run idly upon the shaft 80. As before stated, the shaft 80 is provided with sprocket pinions 81, and these sprocket pinions engage chains which carry the main conveyer.

The rear end of the conveyer is arranged approximately over the front end ofthe boot or hopper 7 which consists of a curved bottom plate and substantially vertical side plates rigid with the edges of the bottom plate and secured to the inner sides ofthe truck sills. Any grain which might escape the elevator or lifting mechanism as it passes from the main conveyer will be caught in this boot or hopper and will, consequently, be saved instead of falling to the ground and being lost.

Thelifting mechanism consists of an endless conveyer which is arranged to travel upwardly past the rear end of the main conveyer and into the threshing machine so as to deliver the grain to the operating members of the threshing machine.

The rear end of the connecting rod 117 is engaged in an eye 146'upon the side of the elevator, when the elevator is in its op erative position, so that, should the pressure of the grain fed to the elevator by the,

main conveyer rise above a predetermined standard, the elevator will yield and move rearwardly and, consequently, pull upon the said connecting rod'1l7. so as to'move the sprocket wheel 79 to the positioniwhere it will run idle, as hereinbefore described.

The elevator is yieldably held in its operative position by a fork 148 having its stem 149' playing in a socket 150 which is pivotally attached to the threshing machine frame through a link 151 and is provided in its sides with longitudinal slots 152 adapted to be engaged by the ends of a pin 153 inserted through the rear end of the stem 149. R-

tation of the stem and its fork within the socket is thereby prevented, while the sliding of the stem within the socket is permitted. A spring 154 is coiled around the stem between the cross bar or shoulder of the fork 148 and the end of the socket 150, and this spring by its expansion tends to hold the fork and the elevator in their forward'operative positions. The outer free ends of the fork are provided with notches 155 adapted to engage pins 156 on the sides of the elevator frame so as to hold the elevator in its lowered position, while, at the same time, the fork may be easily released when such action is necessary.

The grain is deposited in any convenient manner upon the conveyer which carries it to the elevator. 'As the grain can be carried up by the elevator only in quantities determined by the capacity of the same, if the conveyer carries the grain to the elevator in quantities in excess of such capacity, the grain will tend to accumulate between the rear end of the conveyer and the lower portion of the elevator, thereby increasing the pressure upon the elevator. The ability of the elevator to withstand this pressure is determined by the tension of the spring 1541 which yieldably holds the elevator toward the conveyer. Should the pressure upon the elevator exceed the tension of the spring, the elevator will swing rearwardly and thereby exert a pull upon the connecting rod 117 which, as before stated, will actuate the arm 116 so as to rock the shaft 111 and thereby move the sprocket 79 away from the clutch member 112 so that the sprocket will then run idle and the shaft 80 will remain at rest so that the conveyer will not move and no grain will be fed to the elevator until the previously fed excess of grain has been taken up by the elevator, whereupon the spring 154 will return the elevator to its operative position and a reverse movement will be transmitted to the connecting rod 117 and the shaft 111 so that the sprocket 79 will again actuate the shaft 80 and the conveyer will resume the carrying of grain to the elevator, it being understood that the elevator is independently driven from a moving part of the threshing machine.

Having thus described the invention, what is claimed as new is 1. In an apparatus for the purpose set forth, the combination of a conveyer, an elevator having a frame pivotally'mounted above. the delivery end of the conveyer, an arm engaging the elevator frame, a support for the said arm, means acting on the Conic: of this patent may be obtained for arm to yieldably hold the elevator toward the conveyer, and means for preventing rotary movement between the arm and the support therefor.

2. In an apparatus for the purpose set forth, the combination of a conveyer, an elevator pivotally hung at a point above the discharge end of the conveyer, an arm at tached to the elevator, a support for the said fork in which the arm is slidably mounted, a spring'arranged between the said arm and said support, and a pin carried by the arm and engaging the supportto prevent rotation of'the arm.

3. In an apparatus for the purpose set forth, the combination of a conveyer, an elevator moving upwardly in proximity to the delivery end of the conveyer, a shaft operatively connected with the conveyer'to actuate the same, a pinion arranged to drive said shaft, means for rotating said pinion,

means connected with the elevator for moving said pinion into and out of operative relation to said shaft, and yieldable means operatively connected with the conveyer to actuate the same, a clutch member fixed on said shaft, a pinion slidably mounted on said shaft and adapted to engage said clutch member, means for rotating said pinion, means connected with the elevator for moving the pinion into and out of engagement with the clutch member, and a spring mounted member normally holding the elevator to the conveyer. p

5. The combination of a conveyer, an elevator pivotally hung from its upper end and moving upwardly in proximity to the delivery end of the conveyer, a shaft operatively connected with the conveyer. to actuate the same, a clutch member fixed onsaid shaft,

a pinion slidably mounted on said shaft, yieldable means for normally holding said.

. GUY C. LONG. [11s.]

WVitnesses: V

.A. E. WOODEN,

F. B. HILL.

five cent: each, by addressing the 0omm1ssio ner of Patents; 

